The Big Bang Theory S11E4
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S11E04 — The Explosion Implosion
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The Big Bang Theory

S11E04 The Explosion Implosion

2017-10-16

Howard feels anxious about becoming a father, so he and Sheldon strengthen their friendship by working together to build a model rocket. At the same time, Penny is getting closer to Leonard's mother, Beverly, which leaves Leonard feeling uneasy about their growing connection.

Season 11 Episodes

1
The Proposal Proposal
2017-09-25
 2
The Retraction Reaction
2017-10-02
 3
The Relaxation Integration
2017-10-09
 4
The Explosion Implosion
2017-10-16
 5
The Collaboration Contamination
2017-10-23
 6
The Proton Regeneration
2017-11-02
 7
The Geology Methodology
2017-11-09
 8
The Tesla Recoil
2017-11-16
 9
The Bitcoin Entanglement
2017-11-30
 10
The Confidence Erosion
2017-12-07
 11
The Celebration Reverberation
2017-12-14
 12
The Matrimonial Metric
2018-01-04
 13
The Solo Oscillation
2018-01-11
 14
The Separation Triangulation
2018-01-18
 15
The Novelization Correlation
2018-02-01
 16
The Neonatal Nomenclature
2018-03-01
 17
The Athenaeum Allocation
2018-03-08
 18
The Gates Excitation
2018-03-29
 19
The Tenant Disassociation
2018-04-05
 20
The Reclusive Potential
2018-04-12
 21
The Comet Polarization
2018-04-19
 22
The Monetary Insufficiency
2018-04-26
 23
The Sibling Realignment
2018-05-03
 24
The Bow Tie Asymmetry
2018-05-10